And not equal are the good deed and the bad. Repel [evil] by that [deed] which is better; and thereupon the one whom between you and him is enmity [will become] as though he was a devoted friend. (Quran 41:34).

And hold firmly to the rope of Allah all together and do not become divided. And remember the favor of Allah upon you - when you were enemies and He brought your hearts together and you became, by His favor, brothers. And you were on the edge of a pit of the Fire, and He saved you from it. Thus does Allah make clear to you His verses that you may be guided. (Quran 3:103).

60. And make ready against them all you can of power, including steeds of war (tanks, planes, missiles, artillery, etc.) to threaten the enemy of Allah and your enemy, and others besides whom, you may not know but whom Allah does know. And whatever you shall spend in the Cause of Allah shall be repaid unto you, and you shall not be treated unjustly.

61. But if they incline to peace, you also incline to it, and (put your) trust in Allah. Verily, He is the All-Hearer, the All-Knower.

62. And if they intend to deceive you, then verily, Allah is All-Sufficient for you. He it is Who has supported you with His Help and with the believers.

63. And He has united their (i.e. believers') hearts. If you had spent all that is in the earth, you could not have united their hearts, but Allah has united them. Certainly He is All-Mighty, All-Wise. (Ch:8).